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2. Welding of Inconel alloy 718: A Historical Overview;Lingenfelter,1989
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4. The Use of Alloy 718 in The Space Shuttle Main Engine;Jewett,1991
5. A Model for The Formation and Solidification of Grain Boundary Liquid in The Heat Affected Zone of Welds;Radhakrishnam;Metall. Trans. A,1992